Adaptive Neural Oscillator with Synaptic Plasticity Enabling Fast Resonance Tuning

  • Timo Nachstedt
  • Florentin Wörgötter
  • Poramate Manoonpong
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7552)

Abstract

Rhythmic neural circuits play an important role in biological systems in particular in motion generation. They can be entrained by sensory feedback to induce rhythmic motion at a natural frequency, leading to energy-efficient motion. In addition, such circuits can even store the entrained rhythmical patterns through connection weights. Inspired by this, we introduce an adaptive discrete-time neural oscillator system with synaptic plasticity. The system consists of only three neurons and uses adaptive mechanisms based on frequency adaptation and Hebbian-type learning rules. As a result, it autonomously generates periodic patterns and can be entrained by sensory feedback to memorize a pattern. Using numerical simulations we show that this neural system possesses fast and precise convergence behaviour within a wide target frequency range. We use resonant tuning of a pendulum as a simple system for demonstrating possible applications of the adaptive oscillator network.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Timo Nachstedt
    • 1
  • Florentin Wörgötter
    • 1
  • Poramate Manoonpong
    • 1
  1. 1.Bernstein Center for Computational Neuroscience, The Third Institute of PhysicsUniversity of GöttingenGöttingenGermany

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